Screen and bypass arrangement for LWD tool turbine

Details Screen and bypass arrangement for LWD tool turbine Screen and bypass arrangement for LWD tool turbine

1995-06-07

1997-05-06

Dang, Hoang C.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

E21B 4718

Patent

active

056262000

ABSTRACT:
A logging-while-drilling tool for use in a wellbore in which a well fluid is circulated into the wellbore through the hollow drill string. In addition to measurement electronics, the tool includes an alternator for providing power to the electronics, and a turbine for driving the alternator. The turbine blades are driven by the well fluid introduced into the hollow drill string. The tool also includes a deflector to deflect a portion of the well fluid away from the turbine blades.

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